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What is Anti-Pheromone

Chapter 47
Handbook of Research on Nature-Inspired Computing for Economics and Management
Unlike pheromone, anti-pheromone is used to provide negative reinforcement in an ant algorithm. Points in the solution space that are marked with anti-pheromone are usually bad solutions to the problem. The negative reinforcement provided by the anti-pheromone ensures that these points are not included in successive iterations of the ant algorithm.
Published in Chapter:
Efficient Searching in Peer-to-Peer Networks Using Agent-Enabled Ant Algorithms
P. Dasgupta (University of Nebraska, USA)
Copyright: © 2007 |Pages: 18
DOI: 10.4018/978-1-59140-984-7.ch047
Abstract
In this chapter we describe a mechanism to search for resources in unstructured peer-to- peer (P2P) networks using ant algorithms implemented through software agents. Traditional resource search algorithms in P2P networks use an uninformed or blind search among the various nodes of the network. In contrast, the resource search algorithm described in this chapter performs an informed search using the ant-based heuristic. In our algorithm, ants, implemented as software agents, are created in response to a user’s resource search query. An ant reinforces the route that yields a successful search for directing ants in the future towards nodes with higher probability of locating resources. We describe and compare different reinforcement strategies used by ants to perform efficient resource search in P2P networks.
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